Lab-grown diamonds · Bangkok

Lab-grown diamonds that add sparkle to life

White, fancy-shape and fancy-coloured stones, set by our own jewelers.

Who are you shopping for?

Ready-made pieces and custom designs.

Certified loose stones for jewelers and wholesalers.

Why Josh & John Designs

Every loose stone comes with an IGI or GGL certificate you can verify online.

Sister brand of an established natural diamond company, and a member of the Thai Gem and Jewelry Traders Association (TGJTA).

The same diamond, grown sustainably and ethically,, more accessible to own.

Specialty shapes

Ten shapes, cut with intent

Featured pieces

JJ-B-002

JJ-P-011

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